Sentinel
https://github.com/alibaba/Sentinel
中文
https://github.com/alibaba/Sentinel/wiki/%E4%BB%8B%E7%BB%8D
怎么玩
服务使用中的各种问题
服务雪崩
服务降级
服务熔断
服务限流
安装Sentinel控制台
后台
前台8080
安装步骤
下载
https://github.com/alibaba/Sentinel/releases
下载到本地sentinel-dashboard-1.7.0.jar
java -jar sentinel-dashboard-1.7.0.jar
运行命令访问
前提
java8环境OK
8080端口不能被占用
sentinel管理界面
访问sentinel管理界面
http://localhost:8080
登录账号密码均为sentinel
通常需要的依赖
<dependencies> <!--SpringCloud ailibaba nacos --> <dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId> </dependency> <!--SpringCloud ailibaba sentinel-datasource-nacos 后续做持久化用到--> <dependency> <groupId>com.alibaba.csp</groupId> <artifactId>sentinel-datasource-nacos</artifactId> </dependency> <!--SpringCloud ailibaba sentinel --> <dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId> </dependency> <!--openfeign--> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-openfeign</artifactId> </dependency> <!-- SpringBoot整合Web组件+actuator --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <!--日常通用jar包配置--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <scope>runtime</scope> <optional>true</optional> </dependency> <dependency> <groupId>cn.hutool</groupId> <artifactId>hutool-all</artifactId> <version>4.6.3</version> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies>
